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freebsd-nq/sys/arm/include/machdep.h

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Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
/* $FreeBSD$ */
#ifndef _MACHDEP_BOOT_MACHDEP_H_
#define _MACHDEP_BOOT_MACHDEP_H_
/* misc prototypes used by the many arm machdeps */
Instead of using sysarch() to store-retrieve the tp, add a magic address, ARM_TP_ADDRESS, where the tp will be stored. On CPUs that support it, a cache line will be allocated and locked for this address, so that it will never go to RAM. On CPUs that does not, a page is allocated for it (it will be a bit slower, and is wrong for SMP, but should be fine for UP). The tp is still stored in the mdthread struct, and at each context switch, ARM_TP_ADDRESS gets updated. Suggested by: davidxu
2005-02-26 18:59:01 +00:00
void arm_lock_cache_line(vm_offset_t);
Pull out the common code to initialise proc0 & thread0 from initarm to a common function. Reviewed by: imp
2012-06-10 01:13:04 +00:00
void init_proc0(vm_offset_t kstack);
Take the first baby step towards unifying and cleaning up arminit(): - Pull all the code to deal with the trampoline stuff into one centeralized place and use it from everywhere. - Some minor style tidiness Reviewed by: tinguely
2008-04-03 16:44:50 +00:00
void halt(void);
void data_abort_handler(trapframe_t *);
void prefetch_abort_handler(trapframe_t *);
void undefinedinstruction_bounce(trapframe_t *);
More Linux boot support. Create arm_dump_avail_init() to initialize this array either from Linux boot data, when enabled, or in the typical way that most ports do it. arm_pyhs_avail_init is coming soon since it must be a separate function.
2012-06-14 04:18:56 +00:00
/* Early boot related helper functions */
Modify all the arm platform files to call parse_boot_param passing in the boot parameters from initarm first thing. parse_boot_param parses the boot arguments and converts them to the /boot/loader metadata the rest of the kernel uses. parse_boot_param is a weak alias to fake_preload_metadata, which all the platforms use now, but may become more extensive in the future. Since it is a weak symbol, specific boards may define their own parse_boot_param to interface to custom boot loaders. Reviewed by: cognet@, Ian Lapore
2012-06-14 04:00:30 +00:00
struct arm_boot_params;
Create default_parse_boot_param which, if FreeBSD /boot/loader support is enabled, sets values based on the metadata passed in. Otherwise fake_preload_metadata is called. Change the default parse_boot_param to default_parse_boot_param. Enable this functionality only on the mv platform, which is where most of the code is from. Reviewed by: cognet, Ian Lapore
2012-06-14 04:09:20 +00:00
vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
Add support for parsing Linux ATAGs such as you'd see from uboot or redboot. Support is very preiminary and likely needs some work. Also, do some minor code shuffling of the FreeBSD /boot/loader metadata parsing code. This code is preliminary and should be used with caution.
2012-06-14 04:16:16 +00:00
vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp);
vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp);
Create default_parse_boot_param which, if FreeBSD /boot/loader support is enabled, sets values based on the metadata passed in. Otherwise fake_preload_metadata is called. Change the default parse_boot_param to default_parse_boot_param. Enable this functionality only on the mv platform, which is where most of the code is from. Reviewed by: cognet, Ian Lapore
2012-06-14 04:09:20 +00:00
vm_offset_t fake_preload_metadata(struct arm_boot_params *abp);
vm_offset_t parse_boot_param(struct arm_boot_params *abp);
Modify all the arm platform files to call parse_boot_param passing in the boot parameters from initarm first thing. parse_boot_param parses the boot arguments and converts them to the /boot/loader metadata the rest of the kernel uses. parse_boot_param is a weak alias to fake_preload_metadata, which all the platforms use now, but may become more extensive in the future. Since it is a weak symbol, specific boards may define their own parse_boot_param to interface to custom boot loaders. Reviewed by: cognet@, Ian Lapore
2012-06-14 04:00:30 +00:00
More Linux boot support. Create arm_dump_avail_init() to initialize this array either from Linux boot data, when enabled, or in the typical way that most ports do it. arm_pyhs_avail_init is coming soon since it must be a separate function.
2012-06-14 04:18:56 +00:00
/* Setup standard arrays */
void arm_dump_avail_init( vm_offset_t memsize, size_t max);
Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
#endif /* !_MACHINE_MACHDEP_H_ */
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